CODEWITHSUNDEEP
asp.net-core
Benzhi Pan
Benzhi Pan

Reputation: 161

ExceptionFilterAttribute .net core

There is an example of how to make a CustomExceptionFilterAttribute at https://docs.asp.net/en/latest/mvc/controllers/filters.html I would like to do the same to make a CustomExceptionFilterAttribute with IHostingEnvironment as the parameter.

services.AddMvc(
        config =>
        {
            config.Filters.Add(new CustomExceptionFilterAttribute(???));
        });

I am trying to add filters in startup class, but I don't know how to supply the IHostingEnvironment parameter.

services.AddMvc has to be in method

public void ConfigureServices(IServiceCollection services)

I got error if I do

public void ConfigureServices(IServiceCollection services,IHostingEnvironment env)

Upvotes: 2

Views: 3009

Answers (2)

adem caglin
adem caglin

Reputation: 24073

You can use Startup constructor injection like this:

private readonly IHostingEnvironment _env;
public Startup(IHostingEnvironment env)
{
    _env = env;
}

.....

services.AddMvc(
    config =>
    {
        config.Filters.Add(new CustomExceptionFilterAttribute(_env));
    });

See official docs https://docs.asp.net/en/latest/fundamentals/startup.html#services-available-in-startup

Upvotes: 1

Infini Axis
Infini Axis

Reputation: 66

I think what you would want to implement is IExceptionFilter Interface, and after implementation you can add some CustomExceptionFilter into ConfigureServices. CustomExceptionFilterAttribute need to be dealt with differently, because that is an Attribute.

Upvotes: 0

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